Filtering apparatus.



C. 3. SMITH.

FILTERING APPARATUS. APPLICATION FILED AusJ. 1913. RENEWED JUNE I3. 1918. 1,293,650

Patented Feb. 4, 1919.

Specification of Eetters Patent.

" orator.

@ARQLYYKT S. SMITH, @F BEGUKLW, NEW YQItiE.

i TILTERING' APFAEATUS.

' Patented lFeToAL, rare.

application filed August 7, 1913, Serial No. 783,542. Renewed June 13, 191a Serial No. 239,89t.

To all whom it may concern:

Be it known that I, CAROLYN S. SMITH, a

citizen of the United States of America, and

a resident of the borough of Brooklyn, a county of Kings, city and State of New York, have invented certain new and useful Im rovements in Filtering Apparatus, of WlllCll the following is a speci cation accompanied bydrawings.

This invention relates to filtering apparatus, more particularly to portable filtering apparatus, although some of the features of the invention may be applied to various types of apparatus.

The objects of the invention are to produce an apparatus which is simple and efficient, readily transported from place to place and suitable for ofiice and home use and capable of being easily adjusted and cleaned.

The invention is illustrated in one of the best forms known to me in the accompanying drawing, which is an elevation partly in longitudinal section.

it Referring to the drawing,'A represents a suitable frame or stand, preferably of such character that the filtering apparatus is portable. The filtering tank B is preferably removably supported in the stand, so that o it may be readily cleaned and to permit the filtering material to be renewed. The filtering means in the tank is preferably adapted to set up suficient galvanic action in the water to aid in purifying the water. Gale vanic couples are formed in the tank by means of wire mesh gauze or nettings of difi'erent metals, as brass and aluminum, having their edges in contact, the mesh to be substantially fine, as No. 60. These gala vanic couples are in the form of transverse partitions, constructed by spreading the wire mesh and D over a holding or clamping ring E, so that the ends of the portions of wire mesh are in contact. The ring and t gauze carried thereby are placed in the tank and the rings E are provided with the holes to enable the partitions to be manipulated into positionand withdrawn when desired. The edges of the wire mesh portions are clamped between the rings E and the sides of the tank or container. Three partitions are illustrated, and the galvanic action in the tank is more efiicient if the character of the metals forming the wire meshes is alternated throughout the series of partitions. The wire mesh portions C of one metal, as

brass, alternate with the mesh portions D of aluminum; To increase the purity, I prefer to use additional filtering material, as carbon G in one portion of the tank and flmt Hm another portion. The galvanic action seems to be increased if the water is forced into the tank under pressure and I prefer to force the water in at the bottom and withdraw it at the top. The temperature of the not be too low, preferably not below about 40 F. so that ice should not be packed around the tank, because this seems to retard or destroy the galvanic action.

In the mechanical construction of the ap- Earatus, heads or end portions J and K may e provided su1tably connected to the frame, and the tank proper B may be-inserted between the heads and removably held in pos1t1on by means of suitable clamps L. Rubber gaskets O are referably inserted between the heads and the tank, and the bottom head K is preferably of magnetized metal which is insulated from the tank B by the gasket 0. The magnetic attraction orerte the head K tends to aid in drawing impur tles to the bottom, as for instance, metallic particles. If desired, a partition P of fibrous material as asbestos may be inserted between the head K and the tank B or m the lower portion of the apparatus, which serves to catch the sediment and impur1t1es and may be renewed when necessary. I prefer to arrange the tank vertlcally, and the inlet Q is attached to the lower head K, while the outlet R is attached to the upper head J, and these connections are not disturbed by the insertion and removal of the tank B. The draw-0E or drain pipe S is preferably arranged at one side of the bottom as shown and the inlet Q; at the other side, so that in cleaning the apparatus,

the current of water is forced across the bottom.

The water reservoir T is preferably arranged at the top ofthe apparatus, and a cooling chamber U is arran ed intermediate the reservoir T and the tan B, and preferably provided with a coil V which may be embedded in ice, and is connected to the outlet R. The draw-off cock W is at the side of the apparatus, and the drain X for the cooling chamber extends to the lower portion of the frame. A pump cylinder Y receives water from the-ireservoir T and its spring retracted plunger may be manipulated by till titttank should also wild the foot of the operator as by means of the treadle connected to the plunger. The arrangement is such that each time that the treadle Z is pressed downward, a measured quantity of Water enters the cylinder Y and is forced under pressure through the pipe on connecting with the inlet Q into the tank. The .quantity of water so forced may be about one glassful or more, and may be withdrawn from the cock W at once or the cock W may be opened before the pumpplunger is operated, so that the water is forced directly into the glass. The tank may be pumped up under (pressure by several strokes of the pump an thusmaintained under pressure, if desired.

I claim and desire to obtain by Letters Patent the following:

1. A self-contained portable filtering apparatus, comprising a frame or stand, a filter tank supported by said stand, a Water reservoir supported by said stand, a 'pump connected to receive water from the reservoir, a plunger for the pump,

retracting means for the plunger, a connection between the pump and the inlet of the filter tank, and manual means for actuating the plunger, thereby forclng measured quantities of water from said water reservoir into said filter tank.

'2; A self-contained portable filtering apparatus, comprising a frame or stand, a filter tank supported by said stand and having an mlet at its bottom, a water reservoir supported by the stand above the filter tank, a

iump cylinder connected to receive water from the reservoir, a spring retracted plunger for said pump cylinder, a connection be tween said pum'p cylinder and the inlet at the bottom of the filter tank, and manual means foractuating said plunger, thereby forcing measured quantities of water from said water reservoir into said filter tank.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

CAROLYN S. SMITH.

Witnesses:

HERBERT G. OGDEN, M. M. Riemann. 

